The germ layer located on the dorsum of the embryo is the

a. hypoblast.

b. mesoderm.

c. endoderm.

d. ectoderm.

e. epiblast.

2. The mother is blood type O and the father is blood type A. What are the possible blood types of the offspring?

What happens when nutrient levels become too concentrated in rivers, lakes, and oceans? When nutrient levels get too high, water quality degrades and oxygen levels are depleted through a process known as

Tench fish can't survive salt concentrations beyond 1%. In which two areas can these fish be found? lakes oceans rivers seas

ATP are used in the energy investment stage of glycolysis and a net of ATP are returned.

Where is most of fresh water on earth found

Is a glacier nothing more than a huge mineral flowing downhill? Be sure to defend your answer with facts.

Natural selection works on the phenotype, rather than genotype, what best explains the reason for this

Organism Reproduction Tools Mitosis is a type of cell division that produces cells that are used for growth and repair. Meiosis is a different type of cell division that produces sex cells used for sexual reproduction.

In a scientific experiment, a is any factor that can change or be changed

During winter in the Northern Hemisphere, A. the Sun rises earlier and sets later than during other seasons. B. the Sun appears lower in the sky than during other seasons. C.